Tricycle.



N. L'ARsoN. TRICYCLE. APPLIUTIIQN FILED SEPT.' 1`, 1906.

PATENTBD MAR. 1o, 190s.

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ATTORNEYS No. 881 808. P y N' LARSONI AT .BN'I'ED MAR 10, 1808 TRICYCLE.APPLIoATIoN FILED SEPT; 1, 1906.

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dumllnfw W/TNESSES TH: Hemus PETERS ce.. wAsmNamN. n.

- To all whom tt may concern:

. port various parts of NICHOLAS LARSON, `OF AGRA, KANSAS.

TRICYCLE Specification of Letters Patent.

Patented March 10, 1908.

Application filed September 1,1906. Serial No. 332,913.

Be it known that I, NICHOLAS LARsoN, a subject of the King of Denmark,and a resident of Agra, in the county of Phillips and State of Kansas,have invented a new and Improved Tricycle, of which the following is afull, clear, and exact description.

This invention relates to tricycles, and is particularly useful inconnection with devices of this character which are adapted to bepropelled by handand foot power.

The object of the invention is to provide a tricycle simple, strong anddurable in construction, which is provided with means for propelling itby foot and by hand.

A further objectv of the invention is to provide a tricycle having spurgear transmission and means for effectively braking upon the crank shaftby means of which the foot and hand power is transmitted, and in Whichthe Wheels are laterally adjustable to the width of the path.

The invention consists in the construction and combination of parts tobe more fully described hereinafter and particularly pointed out in theclaims.

Reference is to be had to the accompanying drawings forming a part ofthis specification in Which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of my invention Fig. 2 is a top plan viewshowing the steering wheel set in a position adapted laterally todeviate the. course of the machine; Fig. 3 is a partial vertical crosssection Iof the lower end of the seat post, Fig. 4 is a vertical crosssection of the seat post socket; and Fig. 5 is a front elevation of atransverse member ofthe frame.

Referring more particularly to the drawings, I provide a frame work 1,of steel tubing or the like, such as is usually employed at present inconstructing similar mechanism. The frame consists of two longitudinalmembers having substantially parallel sections 2, forming main membersof the rear part of the frame, and forward sections 3 disposed upwardlyand inwardly to converge at the point of the frame where they aresecured at the lower part of a hollow head 4 by brazing or in any othersuitable manner. I provide transverse members of the frame which areadapted to brace the structure and to supthe mechanism, as will appearhereinafter. The sections 2 have sleeves 5 with lateral sockets, inwhich is mounted a transverse member 6. The ends of the transversemember 6 are laterally and downwardly disposed to permit the member toclear certain parts of the drivingv mechanism, which will be describedhereinafter. The forward sections 3 have similar sleeves 7, 8 and 9 withlateral sockets in which the transverse members 10, 11 and 12 aremounted, as appears most clearly in Fig. 2. The sleeves are brazed uponthe frame work, or otherwise suitably secured in position, and have thesockets adapted to receive the transverse members, inwardly disposed. Atthe back of the frame the sections 2 terminate in transverse sleeves 13,constituting bearings, in which is mounted an axle 14 having theextremities thereof extending laterally beyond the frame, and upon theseextremities are mounted the back wheels 45 having hubs 15. The wheelsare slidable upon the axle 14 and may be adjusted to suit the Width ofthe f path. They are secured in place on the axle at the desireddistance from one another by means of set screws 16, penetrating thehubs and adapted to be forced against the axle.

The axle 14 further has between the Wheels and inside of thelongitudinal frame members 2, pinions 17 of the usual form and providedwith suitable teeth.

Mounted upon the sections 2 are sleeves 13, having lateral sockets 19,constituting bearings in which is mounted a crank shaft 20, havingcranl's 21 and 22 in pairs. The separate cranks of the pairs are located180o apart, While the cranks are each located 90 apart from the nextadjacent crank. The four cranks thus evenly distribute the power appliedto them upon the shaft. The shaft 2() has rigidly secured upon it gearwheels 23, which are of suitable form and adapted to engage with thepinions 17 upon the axle 14. It will be understood that the gear of themachine may be Ialtered by substitutingsuitable pinions and gear wheelsof different sizes for those upon the machine. The power from the crankshaft 20 is transmitted through the gear wheels 23 to the pinions 17,and thus to the driving wheels 45. The ends of the sections 2 forward ofthe crank shaft 20, are provided with sleeves 24, having sockets 25,constituting bearings in which is mounted a second crank shaft 26,having a single pair of cranks 27 similarly located to one of the pairsof the cranks 22 upon the shaft 20. The cranks 22 and 27 are joined byconnecting rods or links 28 below the parts 33,

` longitudinal brace 39 extends from pivotally mounted upon the wristsof the respective cranks in the usual manner. Upon the links 2S, nearthe forward ends thereof, are foot rests 29, eonsituting pedals to beoperated by the feet of the rider.

Mounted upon the sections 2, between the crank shafts, is a transversemember 30, which is secured to the frame in sockets 31 upon the sections2, in a manner similar to that in which the other rigid transversemembers are mounted upon the frame. The member 30 is of substantiallyrectangular section and has upwardly disposed portions 32, thehorizontal portions 33 of which constitute bearings for hand levers 34which are mounted thereupon The hand levers have extremities extendingdownward and which are Vadapted to reciprocate within the parts 32 whenoperated by hand. At -the end of the hand levers, connecting rods orlinks 35 are provided with their oppositeends pivotally mounted upon thewrists of the cranks 21 of the crank shaft d20. 1t will be understoodthat as the hand levers are reciprocated back and forth, this reciprocalmotion is translated into a rotary one upon the eran` shaft 20 throughthe connecting rods or linjs 35. The transverse member has an u1- wardlydisposed part 36, near the center, upon which is mounted a seat postsoc"et, which will be described hereinafter. The transverse member 30also has pivoted upon it a handlever 37 upon the part 36, whichalsobears a notched quadrant 38, which is adapted to hold the lever' 37in a plurality of positions in the usual manner. A central thetransverse member 6 to the transverse member 30, and is rigidly securedto each of these members. This longitudinal brace 39 has pivoted upon ita short rod 40, having at its end a block 41, which is adapted to beforced against the edge of a disk 42 rigidly secured upon the crankshaft 20. By forcing the block 41 against the disk 42, a strong braf ingeiect is secured which is adapted to decrease the speed of the machinewith great rapidity, when so desired. A link 43, which is pivoted uponthe rod 40 and brake lever 37, permits the brake to be manipulated bythe rider who is seated upon a'seat 44, mounted, as will appearhereinafter, upon a seat post 107, which is secured in the seat postsocket 46, (Fig. 4), upon the transverse member 30..

Mounted upon the transverse members 10 and 11 are uprights andcross-bars of the steering mechanism, carrying a transverse shaft 53having rigid spools. A shaft 59 has a worm 60 in mesh with a gear-wheel61 of the shaft 53. At the end of the shaft 59, within reach of theoperator upon the seat 44, is a steering wheel 62. Cords or chains arewound upon the spools in opposite at the end of the directions andthrough suitable lever bars and links control the steering plate 70,upon the tube 71 of the head 4 which carries the front wheel, tlms, asthe steering wheel 62 is turned, a torque or turning movement is exertedupon the steering plate and the front wheel. The head 4 has a rotatablerod mounted in the tube 71 having a. substantially square sectioncarrying members having springs to absorb shocfrs, the members beingarranged between the steering plate 7() and the head of the fork 3l.`Within the fork is mountedr a front wheel 33 having a hub 84 andsecured in place in the. usual manner by extensions and nuts 35 and H6.A diagonal brace rod 123 extends from a socet 127 at the top of the headl to a suitable soe' et 125 on the transverse member.

The transverse member 30 of the frame is of substantially rectangularsection. Upon this cross member, near the center, is secured a bracket0S fitting securely upon the transverse member and having an ear 00 anda. lateral extension 100. The seat post socket 46 has an ear 101 whichis adapted to be secured to the ear 99 by means of a pivot bolt 102, andan extension .103, which is adapted to be adjustably secured to theextension 100 by means of a removable pin 106 passing throughregistering holes 104 and 105 in the extensions. By providing a suitablenumber of holes in these extensions, the angularity of the seat postsocket withrespeet to the bracket may be altered at will, thereby`giving the seat post any desired. incline. The seat post socket isinteriorly threaded and is adapted to receive the correspondinglythreaded end 108 of the seat post 107.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent:

1. A device of the class described, comprising a frame having an axlemounted thereon, wheels on said axle, a crank shaft having pairs ofcranks and means for driving said axle, hand levers adapted to rotate z,pair of said cranks, a second erank shaft adapted to be rotated by thefoot of the operator, and a link connecting a crank of said second shaftwith a crank of said iirst shaft.

2. A device of the class described, comprising a frame having an axlemounted thereon, wheels and pinions on said axle, a crank shaft havingpairs of cranks and gear wheels adapted to engage with said pinions,hand levers adapted to rotate a pair of said cranks, a second crankshaft adapted to be rotated by the foot of the operator, and a linkconnecting a crank of said second shaft with a crank of said iirstshaft.

3. A device of the class described, comprising a frame, an axle havingpinions and adjustable wheels thereon, a crank shaft having pairs ofcranks and gear wheels adapted to engage with said inions, a secondcrank shaft having cran s, links connecting1 said crank shafts andhaving foot rests t ereon constituting pedals, hand levers having linksadapted to rotate a pair of said cranks on said rst shaft, and means forsteering the device.

4. A device of the class described, comprising a frame, an axle havinginions and adjustable wheels thereon, a crank shaft having pairs ofcranks, the cranks of each pair being arranged substantially v180oapart, a second crank shaft having a pair of cranks arrangedsubstantially 18()o apart, links connecting vsaid cranks of said secondcrank shaft with a pair of said cranks respectively of said rst crankshaft and having foot-rests thereon constituting pedals, hand levershaving links adapted to rotate a pair vof said cranks on said firstcrank shaft, and means for steering the device.

5. A device of the class described, comprising a frame Vhaving an axlemounted thereon and a transverse member, wheels and pinions on saidaxle, a crank shaft hav- ,ing pairs of cranks, and gear Wheels adaptedto engage with said pinions, hand levers pivotally mounted upon saidtransverse members, links operatively connecting said hand levers and apair of said cranks, a second crank shaft adapted to be rotated by thefoot of the operator, and a link connecting a crank of said second shaftwith a crank of said first shaft.

` 6. A device of the class described, comprising a frame havinglongitudinal members with converging upwardly disposed forward endssecured to a hollow head and transverse members, an axle having pinions,a shaft having gear wheels adapted to engage with said pinions, handlevers adapted to rotate said shaft, one of said transverse membershaving laterally disposed ends to permit said member to clear saidpinions and gear wheels, another of said transverse members havingupwardly disposed parts presenting pivots for said hand levers.

In testimony whereof I have signed Vmy name to this specification in thepresence of two subscribing witnesses.

. NICK LARSON. Witnesses:

WALTER BOYD, MABEL M. BOYD.

